5/8 USS Flat Washer Med Carbon Through Hardened Plain Domestic USA - Carton (300)

Handle heavy-duty fastening with confidence using our 5/8" USS Flat Washers. This bulk package of 300 washers is proudly made in the U.S.A. from medium carbon steel that has been thru-hardened for optimal strength and wear resistance. Designed with the wide USS pattern, these plain-finish washers provide a robust bearing surface essential for structural integrity in construction and industrial machinery assembly.